update_dns_ip.ps1

update_dns_ip.ps1

$Computerlist = get-content "\\vmware-host\Shared Folders\Documents\RGA\dns_server_updates.txt" 
$dnsservers =@("192.168.0.9","192.168.0.12") 
$cred = Get-Credential rga.local\it-services
 
foreach ($computername in $computerlist) { 
    $result =  get-wmiobject win32_pingstatus -filter "address='$computername'" 
    if ($result.statuscode -eq 0) { 
        $remoteNic = get-wmiobject -class win32_networkadapter -computer $computername -Credential $cred | where-object {$_.Name -eq "vmxnet3 Ethernet Adapter"} 
        $index = $remotenic.index 
        $DNSlist = $(get-wmiobject win32_networkadapterconfiguration -computer $computername -Credential $cred -Filter ‘IPEnabled=true’ | where-object {$_.index -eq $index}).dnsserversearchorder 
        $priDNS = $DNSlist | select-object -first 1 
        Write-host "Changing DNS IP's on $computername" -b "Yellow" -foregroundcolor "black" 
        $change = get-wmiobject win32_networkadapterconfiguration -computer $computername -Credential $cred | where-object {$_.index -eq $index} 
        $change.SetDNSServerSearchOrder($DNSservers) | out-null 
        $changes = $(get-wmiobject win32_networkadapterconfiguration -computer $computername -Credential $cred -Filter ‘IPEnabled=true’ | where-object {$_.index -eq $index}).dnsserversearchorder 
        Write-host "$computername's Nic1 Dns IPs $changes" 
    } 
    else { 
        Write-host "$Computername is down cannot change IP address" -b "Red" -foregroundcolor "white" 
    } 
}